EP3412138A1 - Combine harvester concave assembly and attachment method - Google Patents
Combine harvester concave assembly and attachment method Download PDFInfo
- Publication number
- EP3412138A1 EP3412138A1 EP18176694.0A EP18176694A EP3412138A1 EP 3412138 A1 EP3412138 A1 EP 3412138A1 EP 18176694 A EP18176694 A EP 18176694A EP 3412138 A1 EP3412138 A1 EP 3412138A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame
- concave
- outer support
- trunnion
- engaging member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000004323 axial length Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 10
- 238000003306 harvesting Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 3
- 239000010902 straw Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241001464837 Viridiplantae Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 108010081181 calcium-binding protein (brain) Proteins 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000012559 user support system Methods 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
- A01F12/26—Multi-part threshing concaves
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
- A01F12/185—Mounting means
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
- A01F12/24—One-part threshing concaves
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
- A01F12/28—Devices for adjusting the concaves
Definitions
- Various exemplary embodiments relate to a concave for an agricultural combine and in particular to a concave that sheds crop material to avoid plugging when harvesting green plant material, high moisture corn or a high volume throughput of dry crop material.
- Agricultural combines are large machines that harvest, thresh, separate and clean an agricultural crop.
- the resulting clean grain is stored in a grain tank located on the combine.
- the clean grain can then be transported from the grain tank to a truck, grain cart or other receiving bin by an unloading auger.
- Rotary combines have a rotary crop processing unit formed by a rotor and a casing surrounding the rotor.
- the rotary crop processing unit has an inlet transition section for pulling crop material into a rotary crop processing unit from the feederhouse.
- the rotary crop processing unit includes a threshing section for threshing the crop material and a separating section for separating the grain from the threshed crop material.
- the bottom of the casing is provided with a series of grates through which the grain and chaff fall from the casing.
- the grates, located beneath the threshing section of the rotary crop processing unit comprise a concave.
- Crop material especially green crop material and high volume crop material, tends to plug the concave, not allowing grain to pass through the concave and thus reducing capacity and threshing ability. Furthermore, in some rotary combines, it is necessary to change between two different concaves, with different sized openings, when changing between harvesting of small and large grain crops.
- a concave assembly for an agricultural machine includes a frame pivotally connected to a structural component and a concave connected to the frame.
- the frame includes a trunnion having a front end and a rear end.
- a front arm and a rear arm are connected to the trunnion.
- a crossbar extends between the front arm and the rear arm.
- a rotating member rotatably connected to the crossbar.
- the concave includes a first outer support and a second outer support.
- An inner support is positioned between the first outer support and the second outer support.
- a plurality of separator bars extend between the first outer support and the second outer support.
- an agricultural machine includes a rotary crop processing unit having a first rotor and a second rotor.
- a connector rail extends along an axial length and is positioned between the first rotor and the second rotor.
- a first frame is pivotally connected to the connector rail and has a first engaging member.
- a second frame is pivotally connected to the connector rail opposite the first frame and a has a second engaging member.
- a first concave is connected to the first frame and extends underneath the first rotor.
- a second concave is connected to the second frame and extends underneath the second rotor.
- the first engaging member is configured to engage the second frame to limit rotation of the first frame in a first direction
- the second engaging member is configured to engage the first frame to limit rotation of the second frame in a second direction.
- FIG. 1 shows an agricultural machine embodied as a combine 10 comprising a supporting structure 12 having ground engaging members 14 extending from the supporting structure 12.
- a harvesting platform 16 is used for harvesting a crop and directing it to a feederhouse 18.
- the harvested crop is directed by the feederhouse 18 to a beater 20.
- the beater directs the crop upwardly through the inlet transition section 22 to the rotary crop processing unit 24.
- a rock trap 25 is positioned between the feederhouse and the beater 20.
- the rotary crop processing unit 24 threshes and separates the harvested crop material.
- the processing unit 25 comprises a rotor 26 radially surrounded by a casing 28 that together define an inlet section 30, a threshing section 32 and a separating section 34.
- the rotor 26 comprises a hollow cylindrical drum having a plurality of crop processing elements that engage the crop and rotate it in the casing 28.
- the bottom of the casing has a concave 36 under the threshing section 32 and a separating grate 38 under the separating section 34.
- Grain and chaff falling through the concave 36 and the separating grate 38 are directed to cleaning system 40.
- the cleaning system 40 removes the chaff and directs the clean grain to a clean grain elevator (not shown).
- the clean grain elevator deposits the clean grain in a grain tank 42.
- the clean grain in the tank 42 can be unloaded into a grain cart or truck by an unloading auger 44.
- Threshed and separated straw is discharged from the rotary crop processing unit 24 through outlet 46 to a discharge beater (not shown).
- the discharge beater in turn propels the straw out the rear of the combine.
- the operation of the combine is controlled from operator's cab 48.
- FIGS. 2 and 3 show an exemplary embodiment of a double concave assembly 100 having a first set of concaves 102 and a second set of concaves 104 connected to a central spine 106.
- the spine 106 is a structural component positioned in the combine 10.
- a connector rail 108 is positioned at the bottom of the spine 106.
- One or more frames 110 are pivotally connected to the connector rail 108 on each side of the spine 106. As best shown in FIG. 1 , the frames 110 are connected by one or more clamps 112 positioned along the axial length of the spine 106.
- a concave 114 is connected to each of the frames 110.
- the illustrated embodiment depicts two frames 110 and two concaves 114 on each side of the spine 106, however any number of frames 110 and concaves 114 can be used depending on the size of the combine 10.
- the concaves 114 have a curved configuration and extend from an inner end 116 adjacent the spine 106 to an outer end 118.
- the outer end 118 of the concaves can be connected to a Z-bar 120.
- the Z-bar 120 can be connected to a hydraulic system that can move the concaves 114 and frames 110 toward and away from the rotor 26 in a radial direction.
- FIG. 4 shows an exemplary embodiment of the frames 110.
- Each frame 110 includes a trunnion 130 that is connected to the connector rail 108 by the clamps 110.
- the trunnion 130 has a front end 132 facing the front or inlet of the combine 10 and an opposite rear end 134.
- a pair of engaging members 136 are positioned in a central region of the trunnion 130.
- the engaging members 136 extend from the trunnion 130 toward an opposite frame 110.
- the engaging members 136 include a curved end portion 138 that is configured to engage the trunnion 130 of the opposite frame 110. This engagement acts to limit the rotation of the frames 110 with respect to the rail 108.
- a pair of flanges 140 are spaced from the engaging members 136 on the trunnion 130.
- the flanges 140 abut the clamps 110, resisting axial movement of the frames 110 along the spine 106.
- the flanges 140 can also be used as indicators to assist an installer in properly aligning the clamps 110 along the rail 108.
- a front arm 142 and a rear arm 144 extend from the trunnion 130 away from the spine 106 and toward an outer side of the combine 10.
- the arms 142, 144 have a curved configuration with a first end connected to the trunnion 130 and an opposite second end.
- a front mounting block 150 and a rear mounting block 152 are positioned adjacent the front and rear arms 142, 144, respectively.
- Each of the mounting blocks 150, 152 include an opening configured to receive a fastener.
- the fastener can be threadably connected to the opening or it can be a bolt having a head positioned on one side of the mounting blocks and a nut positioned on the opposite side of the mounting blocks 150, 152.
- the mounting blocks 150, 152 can include a capture feature, such as a hex opening, configured to receive and prevent rotation of a nut.
- a crossbar 154 extends between the front and rear arm 142, 144 and has a first end 156 connected to the front mounting block 150 and a second end 158 connected to the rear mounting block 152.
- the crossbar 154 includes a central portion 160 that is positioned lower than the first and second ends 156, 158.
- the central portion 160 receives a rotating member 162 that is rotatably connected to the crossbar 154.
- the rotating member 162 is a cylindrical pin.
- FIGS. 5 and 6 show an exemplary embodiment of a concave 114.
- the concave 114 includes separator bars 170 extending between supports, including a pair of outer supports 172 and a pair of inner supports 174.
- Each of the supports 172, 174 includes a forked end 176 having a channel 178 for receiving the trunnion 130 of the frame 110.
- the channel 178 is sized larger than the diameter of the trunnion 130 to provide clearance between the two components. In an unstressed position, the trunnion 130 will not engage the forked end 176, but contact can be made when there is external loading.
- the outer supports 172 include an outer lobe 180 having a flattened bottom 182 and the inner supports 174 include an inner lobe 184 having a flattened bottom 186.
- the outer lobes 180 are larger and extend down further than the inner lobes 184.
- Mounting brackets 188 are connected to the outer lobes 180 and include an opening configured to align with (e.g. coaxial with) the opening of the mounting blocks 150, 152.
- FIGS. 7 and 8 show the concave 114 connected to the frame 110.
- the concave 114 is positioned over the frame 110 that the front and rear arms 142, 144 are positioned inside of the outer supports 172.
- the channels 178 in the forked ends 176 of the supports receive the trunnion 130 of the frame 110.
- the mounting brackets 188 are aligned with the mounting blocks 150, 152 and the crossbar 154 extends between the outer lobes 180, with the inner lobes 184 positioned over the central portion 160 of the crossbar 154 and the rotating member 162.
- fasteners extend through the mounting brackets 188 and at least partially into the mounting blocks 150, 152 to secure the concave 114 to the frame 110.
- FIGS. 9-12 show the steps to install the concave 114 onto the frame 110 in the combine 10.
- the concave area can be accessed through a side door 60 in the combine 10.
- the frames 110 typically remain connected to the rail 108, but the concaves 114 can be removed for cleaning or replacement, or can be changed to accommodate different crops.
- the concave 114 is initially inserted through a side door 60 in the combine 10.
- the concave 114 can be rotated or angled to maneuver the interior end 116 around the rotor 26.
- a user supports the concave 114 and inserts it through the side door 60 until the concave 114 can rest on the frame 110.
- the inner supports 174 are positioned so that they engage the rotating member 162.
- the concave 114 can then be pushed, causing it to slide relative to the frame 110, assisted by rotation of the rotating member 162.
- the concave will slightly rise as the rotating member 162 engages the inner lobe 184, alerting the user that the concave 114 is almost in position.
- the concave 114 is fully supported by the frame 110.
- the user can make any needed adjustments and can then secure the concave 114 to the frame 110 and to the Z-bar 120.
- the concave 114 can be removed in a similar manner, but in reverse. Utilizing this structure, it is possible for a single person to install or remove a concave 114 from the outside of the combine 10.
- the terms “front,” “rear,” “upper,” “lower,” “upwardly,” “downwardly,” and other orientational descriptors are intended to facilitate the description of the exemplary embodiments of the present disclosure, and are not intended to limit the structure of the exemplary embodiments of the present disclosure to any particular position or orientation.
- Terms of degree, such as “substantially” or “approximately” are understood by those of ordinary skill to refer to reasonable ranges outside of the given value, for example, general tolerances associated with manufacturing, assembly, and use of the described embodiments.
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Abstract
Description
- Various exemplary embodiments relate to a concave for an agricultural combine and in particular to a concave that sheds crop material to avoid plugging when harvesting green plant material, high moisture corn or a high volume throughput of dry crop material.
- Agricultural combines are large machines that harvest, thresh, separate and clean an agricultural crop. The resulting clean grain is stored in a grain tank located on the combine. The clean grain can then be transported from the grain tank to a truck, grain cart or other receiving bin by an unloading auger.
- Rotary combines have a rotary crop processing unit formed by a rotor and a casing surrounding the rotor. The rotary crop processing unit has an inlet transition section for pulling crop material into a rotary crop processing unit from the feederhouse. The rotary crop processing unit includes a threshing section for threshing the crop material and a separating section for separating the grain from the threshed crop material. The bottom of the casing is provided with a series of grates through which the grain and chaff fall from the casing. The grates, located beneath the threshing section of the rotary crop processing unit, comprise a concave.
- Crop material, especially green crop material and high volume crop material, tends to plug the concave, not allowing grain to pass through the concave and thus reducing capacity and threshing ability. Furthermore, in some rotary combines, it is necessary to change between two different concaves, with different sized openings, when changing between harvesting of small and large grain crops.
- According to an exemplary embodiment, a concave assembly for an agricultural machine includes a frame pivotally connected to a structural component and a concave connected to the frame. The frame includes a trunnion having a front end and a rear end. A front arm and a rear arm are connected to the trunnion. A crossbar extends between the front arm and the rear arm. A rotating member rotatably connected to the crossbar. The concave includes a first outer support and a second outer support. An inner support is positioned between the first outer support and the second outer support. A plurality of separator bars extend between the first outer support and the second outer support.
- According to another exemplary embodiment, an agricultural machine includes a rotary crop processing unit having a first rotor and a second rotor. A connector rail extends along an axial length and is positioned between the first rotor and the second rotor. A first frame is pivotally connected to the connector rail and has a first engaging member. A second frame is pivotally connected to the connector rail opposite the first frame and a has a second engaging member. A first concave is connected to the first frame and extends underneath the first rotor. A second concave is connected to the second frame and extends underneath the second rotor. The first engaging member is configured to engage the second frame to limit rotation of the first frame in a first direction, and the second engaging member is configured to engage the first frame to limit rotation of the second frame in a second direction.
- The aspects and features of various exemplary embodiments will be more apparent from the description of those exemplary embodiments taken with reference to the accompanying drawings, in which:
-
FIG. 1 is a schematic, side vide of a combine having a rotary processing unit; -
FIG. 2 is a bottom perspective view of a double concave assembly; -
FIG. 3 is a top perspective view ofFIG. 2 ; -
FIG. 4 is a top perspective view of a pair of frame members; -
FIG. 5 is a top perspective view of a concave; -
FIG. 6 is a bottom perspective view ofFIG. 5 ; -
FIG. 7 is a side, sectional view of the concave connected to the frame; -
FIG. 8 is a bottom perspective view of the concave connected to the frame; -
FIG. 9 is a schematic view of a concave being installed into a combine; -
FIG. 10 is a schematic view of a concave being installed into a combine; -
FIG. 11 is a schematic view of a concave being installed into a combine; and -
FIG. 12 is a schematic view of a concave being installed into a combine and connected to a frame. -
FIG. 1 shows an agricultural machine embodied as acombine 10 comprising a supportingstructure 12 havingground engaging members 14 extending from the supportingstructure 12. A harvesting platform 16 is used for harvesting a crop and directing it to afeederhouse 18. The harvested crop is directed by thefeederhouse 18 to abeater 20. The beater directs the crop upwardly through theinlet transition section 22 to the rotarycrop processing unit 24. Arock trap 25 is positioned between the feederhouse and thebeater 20. - The rotary crop processing unit 24 threshes and separates the harvested crop material. The
processing unit 25 comprises arotor 26 radially surrounded by a casing 28 that together define aninlet section 30, athreshing section 32 and a separatingsection 34. Therotor 26 comprises a hollow cylindrical drum having a plurality of crop processing elements that engage the crop and rotate it in the casing 28. The bottom of the casing has a concave 36 under thethreshing section 32 and a separatinggrate 38 under the separatingsection 34. - Grain and chaff falling through the concave 36 and the separating
grate 38 are directed to cleaningsystem 40. Thecleaning system 40 removes the chaff and directs the clean grain to a clean grain elevator (not shown). The clean grain elevator deposits the clean grain in agrain tank 42. The clean grain in thetank 42 can be unloaded into a grain cart or truck by anunloading auger 44. - Threshed and separated straw is discharged from the rotary
crop processing unit 24 throughoutlet 46 to a discharge beater (not shown). The discharge beater in turn propels the straw out the rear of the combine. The operation of the combine is controlled from operator'scab 48. -
FIGS. 2 and3 show an exemplary embodiment of a doubleconcave assembly 100 having a first set ofconcaves 102 and a second set ofconcaves 104 connected to acentral spine 106. Thespine 106 is a structural component positioned in thecombine 10. Aconnector rail 108 is positioned at the bottom of thespine 106. One ormore frames 110 are pivotally connected to theconnector rail 108 on each side of thespine 106. As best shown inFIG. 1 , theframes 110 are connected by one ormore clamps 112 positioned along the axial length of thespine 106. A concave 114 is connected to each of theframes 110. - The illustrated embodiment depicts two
frames 110 and twoconcaves 114 on each side of thespine 106, however any number offrames 110 andconcaves 114 can be used depending on the size of thecombine 10. Theconcaves 114 have a curved configuration and extend from aninner end 116 adjacent thespine 106 to anouter end 118. Theouter end 118 of the concaves can be connected to a Z-bar 120. As would be understood by one of ordinary skill in the art, the Z-bar 120 can be connected to a hydraulic system that can move theconcaves 114 and frames 110 toward and away from therotor 26 in a radial direction. -
FIG. 4 shows an exemplary embodiment of theframes 110. Eachframe 110 includes atrunnion 130 that is connected to theconnector rail 108 by theclamps 110. Thetrunnion 130 has afront end 132 facing the front or inlet of thecombine 10 and an oppositerear end 134. A pair of engagingmembers 136 are positioned in a central region of thetrunnion 130. The engagingmembers 136 extend from thetrunnion 130 toward anopposite frame 110. The engagingmembers 136 include acurved end portion 138 that is configured to engage thetrunnion 130 of theopposite frame 110. This engagement acts to limit the rotation of theframes 110 with respect to therail 108. A pair offlanges 140 are spaced from the engagingmembers 136 on thetrunnion 130. Theflanges 140 abut theclamps 110, resisting axial movement of theframes 110 along thespine 106. Theflanges 140 can also be used as indicators to assist an installer in properly aligning theclamps 110 along therail 108. - A
front arm 142 and arear arm 144 extend from thetrunnion 130 away from thespine 106 and toward an outer side of thecombine 10. Thearms trunnion 130 and an opposite second end. Afront mounting block 150 and arear mounting block 152 are positioned adjacent the front andrear arms blocks blocks blocks - A
crossbar 154 extends between the front andrear arm first end 156 connected to thefront mounting block 150 and asecond end 158 connected to therear mounting block 152. Thecrossbar 154 includes acentral portion 160 that is positioned lower than the first and second ends 156, 158. Thecentral portion 160 receives a rotatingmember 162 that is rotatably connected to thecrossbar 154. In the illustrated embodiment, the rotatingmember 162 is a cylindrical pin. -
FIGS. 5 and6 show an exemplary embodiment of a concave 114. The concave 114 includes separator bars 170 extending between supports, including a pair ofouter supports 172 and a pair ofinner supports 174. Each of thesupports end 176 having achannel 178 for receiving thetrunnion 130 of theframe 110. In an exemplary embodiment thechannel 178 is sized larger than the diameter of thetrunnion 130 to provide clearance between the two components. In an unstressed position, thetrunnion 130 will not engage the forkedend 176, but contact can be made when there is external loading. - As best shown in
FIG. 6 , theouter supports 172 include anouter lobe 180 having a flattenedbottom 182 and theinner supports 174 include aninner lobe 184 having a flattenedbottom 186. Theouter lobes 180 are larger and extend down further than theinner lobes 184. Mountingbrackets 188 are connected to theouter lobes 180 and include an opening configured to align with (e.g. coaxial with) the opening of the mountingblocks -
FIGS. 7 and8 show the concave 114 connected to theframe 110. The concave 114 is positioned over theframe 110 that the front andrear arms channels 178 in the forked ends 176 of the supports receive thetrunnion 130 of theframe 110. The mountingbrackets 188 are aligned with the mountingblocks crossbar 154 extends between theouter lobes 180, with theinner lobes 184 positioned over thecentral portion 160 of thecrossbar 154 and the rotatingmember 162. As shown inFIG. 7 , fasteners extend through the mountingbrackets 188 and at least partially into the mountingblocks frame 110. -
FIGS. 9-12 show the steps to install the concave 114 onto theframe 110 in thecombine 10. The concave area can be accessed through aside door 60 in thecombine 10. Theframes 110 typically remain connected to therail 108, but theconcaves 114 can be removed for cleaning or replacement, or can be changed to accommodate different crops. The concave 114 is initially inserted through aside door 60 in thecombine 10. The concave 114 can be rotated or angled to maneuver theinterior end 116 around therotor 26. A user supports the concave 114 and inserts it through theside door 60 until the concave 114 can rest on theframe 110. For example, theinner supports 174 are positioned so that they engage the rotatingmember 162. Once the user rests the concave 114 on theframe 110, the full weight of the concave 114 does not need to be supported. The concave 114 can then be pushed, causing it to slide relative to theframe 110, assisted by rotation of the rotatingmember 162. The concave will slightly rise as the rotatingmember 162 engages theinner lobe 184, alerting the user that the concave 114 is almost in position. With the rotatingmember 162 engaging theflat section 186 of theinner lobes 184, the concave 114 is fully supported by theframe 110. The user can make any needed adjustments and can then secure the concave 114 to theframe 110 and to the Z-bar 120. The concave 114 can be removed in a similar manner, but in reverse. Utilizing this structure, it is possible for a single person to install or remove a concave 114 from the outside of thecombine 10. - The foregoing detailed description of the certain exemplary embodiments has been provided for the purpose of explaining the general principles and practical application, thereby enabling others skilled in the art to understand the disclosure for various embodiments and with various modifications as are suited to the particular use contemplated. This description is not necessarily intended to be exhaustive or to limit the disclosure to the exemplary embodiments disclosed. Any of the embodiments and/or elements disclosed herein may be combined with one another to form various additional embodiments not specifically disclosed. Accordingly, additional embodiments are possible and are intended to be encompassed within this specification and the scope of the appended claims. The specification describes specific examples to accomplish a more general goal that may be accomplished in another way.
- As used in this application, the terms "front," "rear," "upper," "lower," "upwardly," "downwardly," and other orientational descriptors are intended to facilitate the description of the exemplary embodiments of the present disclosure, and are not intended to limit the structure of the exemplary embodiments of the present disclosure to any particular position or orientation. Terms of degree, such as "substantially" or "approximately" are understood by those of ordinary skill to refer to reasonable ranges outside of the given value, for example, general tolerances associated with manufacturing, assembly, and use of the described embodiments.
Claims (15)
- A concave assembly for an agricultural machine comprising:a frame pivotally connected to a structural component, the frame comprising,
a trunnion having a front end and a rear end,
a front arm connected to the trunnion,
a rear arm connected to the trunnion,
a crossbar extending between the front arm and the rear arm, and
a rotating member rotatably connected to the crossbar; anda concave connected to the frame, the concave comprising,
a first outer support and a second outer support,
an inner support positioned between the first outer support and the second outer support,
a plurality of separator bars extending between the first outer support and the second outer support. - The concave assembly of claim 1, wherein the frame includes an engaging member extending from the trunnion and the engaging member is configured to limit rotation of the frame.
- The concave assembly of claim 1, wherein the frame includes a front mounting block and a rear mounting block.
- The concave assembly of claim 3, wherein the concave includes a first mounting bracket aligned with the front mounting block and a second mounting bracket aligned with the rear mounting block.
- The concave assembly of claim 4, wherein the first mounting bracket is connected to the first outer support and the second mounting bracket is connected to the second outer support.
- The concave assembly of claim 4, wherein a fastener extends through the first mounting bracket and at least partially into the first mounting block.
- The concave assembly of claim 1, wherein the concave includes a forked end at least partially defining a channel receiving the trunnion.
- The concave assembly of claim 1, wherein the inner support includes a lobe having a flat bottom that engages the rotating member.
- The concave assembly of claim 1, wherein the first arm and the second arm are positioned between the first outer support and the second outer support.
- An agricultural machine comprising:a rotary crop processing unit having a first rotor and a second rotor;a connector rail extending along an axial length and positioned between the first rotor and the second rotor;a first frame pivotally connected to the connector rail and having a first engaging member;a second frame pivotally connected to the connector rail opposite the first frame and a having a second engaging member;a first concave connected to the first frame and extending underneath the first rotor; anda second concave connected to the second frame and extending underneath the second rotor,wherein the first engaging member is configured to engage the second frame to limit rotation of the first frame in a first direction, andwherein the second engaging member is configured to engage the first frame to limit rotation of the second frame in a second direction.
- The agricultural machine of claim 10, wherein the first frame includes a first trunnion and the second frame includes a second trunnion, wherein the first engaging member is configured to engage the second trunnion and the second engaging member is configured to engage the first trunnion.
- The agricultural machine of claim 10, wherein the first engaging member includes a first curved portion.
- The agricultural machine of claim 10, wherein the first frame and the second frame are connected to the connector rail by at least one clamp.
- The agricultural machine of claim 13, wherein the frame includes a flange configured to abut the clamp to limit axial movement of the frame with respect to the connector rail.
- The agricultural machine of claim 10, wherein the first concave is connected to a Z-bar.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US15/618,330 US10602667B2 (en) | 2017-06-09 | 2017-06-09 | Combine harvester concave assembly and attachment method |
Publications (2)
Publication Number | Publication Date |
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EP3412138A1 true EP3412138A1 (en) | 2018-12-12 |
EP3412138B1 EP3412138B1 (en) | 2020-01-29 |
Family
ID=62567532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP18176694.0A Active EP3412138B1 (en) | 2017-06-09 | 2018-06-08 | Combine harvester concave assembly |
Country Status (3)
Country | Link |
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US (2) | US10602667B2 (en) |
EP (1) | EP3412138B1 (en) |
BR (1) | BR102018011597B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3854200A1 (en) * | 2020-01-27 | 2021-07-28 | Deere & Company | Threshing or separating system with removable insert |
US11925145B2 (en) * | 2020-01-06 | 2024-03-12 | Deere & Company | Threshing spine |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201810243D0 (en) * | 2018-06-22 | 2018-08-08 | Agco Corp | Concave change system |
USD1031792S1 (en) * | 2022-08-30 | 2024-06-18 | Calmer Holding Company, Llc | Round bar concave |
USD1031791S1 (en) * | 2022-08-30 | 2024-06-18 | Calmer Holding Company, Llc | Straight bar concave |
Citations (6)
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US3742686A (en) * | 1972-05-10 | 1973-07-03 | Sperry Rand Corp | Axial flow combine harvester |
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2018
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- 2018-06-08 BR BR102018011597-9A patent/BR102018011597B1/en active IP Right Grant
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2020
- 2020-02-07 US US16/785,186 patent/US11553650B2/en active Active
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US20070178951A1 (en) * | 2006-02-01 | 2007-08-02 | Voss Douglas A | Combine harvester processing system having adjustable members |
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US11925145B2 (en) * | 2020-01-06 | 2024-03-12 | Deere & Company | Threshing spine |
EP3854200A1 (en) * | 2020-01-27 | 2021-07-28 | Deere & Company | Threshing or separating system with removable insert |
Also Published As
Publication number | Publication date |
---|---|
US10602667B2 (en) | 2020-03-31 |
EP3412138B1 (en) | 2020-01-29 |
US20200170190A1 (en) | 2020-06-04 |
BR102018011597A2 (en) | 2018-12-26 |
US11553650B2 (en) | 2023-01-17 |
BR102018011597B1 (en) | 2023-03-28 |
US20180352746A1 (en) | 2018-12-13 |
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